nutrients that are needed in relatively large quantities. These include fats, carbohydrates and proteins.

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What are the different forms of carbohydrates?

Starch, non-strach polysaccharide and sugars

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Sugars

Simple, easily broken down, high glycaemix index and have a short lived effect

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Starches

More complex and take longer for the body to digest. Foods have a low GI effect is mainted for longer.

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Non-starch polysaccharides

Not digested, are a form of fibre help with digestion and have a role in lowering cholestrol

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Function of carbohydrates

Broken down into glucose for energy. Can be stored in the body as glycogen.

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Sources of starches

high levels of starches include bread, rice, pasta, potatoes and breakfast cereals.

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Sources of sugar

chocolate, honey, syrup, jam, cakes and biscuits

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Sources of NSP

bran products, peas, beans, coconuts and apricots.

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How does the body use carbohydrates?

digestion of carbohydrate, results in glucose being absorbed into the blood stream, glucose is stored as glycogen, long chains of glucose molecules,stored in the liver and muscle cells the glucose will combine with oxygen

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Different types of fats?

saturated, mono-unsaturated, polyunsaturated

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Function of fats?

energy sources, insulation, use in protective layers

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Sources of saturated fats?

fat on meat, butter, lard, whole milk and cheese

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Sources unsaturated fats?

◦Monounsaturated fatty acids and polyunsaturated fatty acids are found in oils, such as olive oils and ground nut oil, and soft margarine. They are useful for building cell membranes in the body.

HDL and LDL. LDL can build up in blood vessels and causing them to narrow increasing clot risk leading to heart attack or strokes. HDL retrices LDL cholestrol from body and carrying to liver so it doesnt build up

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Sources of protein

meat, fish, eggs, milk, cheese, nuts, beans, peas

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Function of protein?

Broken down into amino acrids. Build,growth, Maintain, Repair, Body tissue. proteins in the muscles enable us to move when the muscle fibres contract and relax, Enzymes and hormones are proteins

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Function of iron

to help make red blood cells, helps immune system to work and brain to function